Marvels of Scientific Invention An Interesting Account in Non-Technical Language of the Invention of Guns, Torpedoes, Submarine Mines, Up-to-Date Smelting, Freezing, Colour Photography, and Many Other Recent Discoveries of Science

Probably no invention has made such a sensation during recent years as wireless telegraphy. And since it is the direct outcome of the most abstruse, purely scientific investigat...

There are many people whose acquaintance with electricity consists mainly in paying the electric light bill. To such the instruments whereby electricity is measured will make a...

There has always been something very fascinating about gold. Even in ancient times it was prized above all other things, and apparently it was comparatively plentiful. It is est...

The sending of a message by telegraph is easily understandable. Various combinations of two simple signs, such as short sounds and long sounds, can readily be made to indicate l...

Even as late as the time of the Crimean War guns, even the largest, were made of that extremely common material, cast-iron. In fact, so far as material went, there was no differ...

Many of the useful and interesting manufacturing processes of to-day are based upon the intense heat which science has taught the manufacturer how to produce. Tasks which our fo...

Science, whether it be of the pure variety, that which is pursued for its own sake--for the mere greed for knowledge--or applied science, the purpose of which is to assist manuf...

We now enter for a while the realm of organic chemistry, a branch of knowledge which is of supreme interest, since it covers the matters of which our own bodies are constructed,...

Most people are afraid of the word explosion and shudder with apprehension at the mention of dynamite. The latter, particularly, conjures up visions of anarchists, bombs, and al...

Those countries which are blessed with a plentiful supply of coal are periodically shocked and saddened by a terrible calamity--an explosion in one of the mines, in which often...

The safety of our fellow-creatures has always been a strong stimulus to our inventive faculties. The occurrence of a bad railway accident, and, roughly, its nature, can be infer...

Students of that branch of science known as physics are coming to the conclusion that electricity plays a much more important part in the universe than was supposed. They are le...

It is sad to think how much scientific skill and learning has, during the Great War, been devoted to killing people. It used to be thought that one day a great scientific invent...

Nothing is more characteristic of the present age than the care which is, quite rightly, expended upon the comfort and safety of those who do the manual labour of the community....

One of the most remarkable adaptations of scientific knowledge is the "manufacture of cold." At first that phrase seems strange, but it is really quite legitimate. There are mac...

Photography has introduced many of the general public to a branch of practical science which otherwise they would never have cared much about. The action of light upon certain c...

The magnetic compass has been for ages the mariner's guide over the trackless waters. In cloudy weather it has been his only means of knowing the direction in which his craft wa...

In the preceding chapter reference was made to the fact that for the successful sending of pictures "by wire" one thing was necessary above all others. That one thing consists i...

One branch of science--medical science--concerns itself almost entirely with health, but it would be out of place to refer to such matters here, even if the present writer were...